Dunbar Douglas, 4th Earl of Selkirk (1 December 1722 – 24 June 1799) was a Scottish peer. Born Dunbar Hamilton, he was the grandson of Lord Basil Hamilton, younger brother to John Hamilton, 3rd Earl of Selkirk. He legally changed his name to Dunbar Douglas upon inheriting his titles in 1744.

In 1778, during the American Revolutionary War, Selkirk was the target of a raid by John Paul Jones, who was sailing in the service of the Continental Navy. Jones landed his ship, the Ranger on the shore of St Mary's Isle, intending to kidnap the Earl. Finding only the countess and her young family at home, his men made off instead with the silver of the household.